Article
Acoustics
Hongzhi Zhu, Fanglong Weng, Makeximu, Donghai Li, Min Zhu
Summary: This research aims to develop a novel method for the active control of combustion oscillation based on active disturbance rejection control (ADRC). The effectiveness of parameter tuning and the controller in suppressing combustion oscillation was studied by simulation and experiments. The experimental results show that the first-order ADRC performs better than the proportional-integral-derivative (PID) controller, while the second-order ADRC exhibits a better pressure-suppression effect and smaller controller output voltage.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Engineering, Mechanical
Feng Pan, Junlin Luo, Wei Wu
Summary: Electromagnetic active suspension is an important technique utilized in vehicles to enhance ride comfort and handling stability. This study introduces an active suspension controller based on the active disturbance rejection control (ADRC) method, and experimental results demonstrate its superior performance compared to the traditional PID controller. The results indicate significant reduction in overshoot and adjustment time, as well as decreased vertical displacement of the vehicle body, with the use of the ADRC controller.
Article
Automation & Control Systems
Sen Chen, Zhixiang Chen
Summary: This article presents an active disturbance rejection control design for nonlinear uncertain systems with measurement uncertainty, aiming to capture the total effect of multiple uncertainties to achieve control. The highly consistent transient performance of tracking is theoretically revealed, along with the qualitative relationship between tracking error and controller parameters. Simulation and experimental results support the effectiveness of the proposed method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Chemistry, Physical
Alicia Li Jen Keow, Amy Mayhall, Marzia Cescon, Zheng Chen
Summary: This study presents a control system to determine the appropriate mass flow rate of hydrogen produced by a water electrolyzer for maintaining gaseous hydrogen pressure. Both PI and ADRC controllers can reject disturbances, with ADRC excelling in eliminating disturbances produced by the mass flow rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Automation & Control Systems
Zhenlong Wu, Gengjin Shi, Donghai Li, Yanhong Liu, YangQuan Chen
Summary: This paper studies the design of active disturbance rejection control (ADRC) for high-order integral systems and proves the necessary condition for ADRC. The advantages of ADRC over proportional-integral-derivative (PID) controller are theoretically analyzed. A practical design procedure for ADRC is summarized using the single variable method, and comparative simulations and experiments are conducted to verify its performance.
Article
Automation & Control Systems
Sihang Li, Jinhui Zhang, Kai Zhao, Yakai Zhang, Zhongqi Sun, Yuanqing Xia
Summary: A novel variable gain active disturbance rejection control (ADRC) approach is developed for the trajectory tracking control of a four-mecanum-wheel mobile vehicle in this article. The proposed approach includes variable gain tracking-differentiator (VGTD), variable gain extended state observer (VGESO), and composite disturbance rejection controller. Error-based variable gains are incorporated in VGTD, VGESO, and controller to improve transient performances.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Agronomy
Xin Ji, Aichen Wang, Xinhua Wei
Summary: The paper investigates the use of a flow control valve and a linear active disturbance controller (LADRC) to control spraying quantity, with experimental results showing the method can significantly suppress disturbances during practical operation. Compared to traditional PID controllers, the proposed controller demonstrates improved response speed and steady-state error accuracy.
Article
Multidisciplinary Sciences
Chethan Krishnan, Ranjini Mondol, M. M. Sheikh Jabbari
Summary: We propose the dipole cosmological principle which suggests that the Universe is a Copernican cosmology consistent with the cosmic flow. This principle generalizes the Friedmann-Lemaitre-Robertson-Walker ansatz and addresses the presence of non-kinematic components in the cosmic microwave background dipole. Our dipole cosmology introduces two additional functions that break the isotropy group and represent an additional scale factor and a tilt denoting the cosmic flow. In some cases, we find that the cosmic flow can grow while the anisotropy dies down.
Article
Physics, Multidisciplinary
Jianjian Zhao, Tao Zhao, Nian Liu
Summary: A novel fractional-order active disturbance rejection control with fuzzy self-tuning method is proposed for a photoelectric tracking system (PTS) in this paper, which can enhance the flexibility and adaptability of the controller, ensure the stability of the control system, and outperform the traditional methods in terms of response speed, overshoot, and disturbance suppression capability in numerical comparative simulations.
Article
Engineering, Aerospace
Dongmei Han, Chuanjun Li, Zhongjiao Shi
Summary: In this paper, an attitude autopilot based on F-LADRC is proposed to address the multi-source uncertainty disturbance problem during flight control. The design includes a second-order linear active disturbance rejection controller to stabilize the attitude angle of the missiles, and the use of fuzzy control for adaptive parameter adjustment to enhance system performance.
Article
Nuclear Science & Technology
Aodi Sun, Pu Songmao, Zhengxi He, Kai Xiao, Peiwei Sun, Pengfei Wang, Xinyu Wei
Summary: This study compares the control performance of PID and MF-ADRC in nuclear power control, and the results show that MF-ADRC performs better in terms of overshoot and settling time.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Automation & Control Systems
Huixia Zhang, Yan Liang, Haiyan Cheng
Summary: This paper presents a convergence analysis for a tracking differentiator of an active disturbance rejection control method. The convergence proof processes are divided into three situations based on the nonlinear piecewise function used in the tracking differentiator. It is proved that the tracking errors of the tracking differentiator are uniformly ultimately bounded and the relationships between the upper bounds of tracking errors and adjustment parameters are established. Simulation and experiment results demonstrate the effectiveness of the proposed convergence analysis.
Article
Automation & Control Systems
Zhuo-Yun Nie, Zhaoyang Li, Qing-Guo Wang, Zhiqiang Gao, Jiliang Luo
Summary: This study demonstrates the integration of the Ziegler-Nichols tuning method into the framework of active disturbance rejection, leading to a unified tuning approach applicable to a wide range of industrial processes. This new method allows practitioners to understand and validate the tuning process using their own language of bandwidth and phase characteristics, with extensive simulation results provided to illustrate its effectiveness.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Engineering, Aerospace
Ke Lu, Hongyuan Tian, Pan Zhen, Senkui Lu, Renliang Chen
Summary: This paper proposes an active disturbance rejection controller for tiltrotor aircraft conversion flight. The controller is designed to handle model uncertainties and external disturbance via estimation, and its effectiveness is demonstrated through simulations.
Article
Engineering, Environmental
Shaojie Liu, Huanpao Huang, Donghai Li, Bin Tian, Wenchao Xue, Li Sun, Min Zhu
Summary: This paper proposes a hybrid bi-level control method for the safety control of superheated steam temperature in a power plant boiler. The method combines active disturbance rejection control and receding horizon optimization to effectively control and optimize the steam temperature. Experimental results show improvements in disturbance rejection and tracking performance.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
